i was wondering if theres any kits made for a conversion to a wideband 02 kit so i can adjust the air/fuel ratio on my tbi engine somehow or any kind of computer or something that would allow me to freely adjust it i currently have a jet proformance chip in it but im only limited to what it allows and i would prefer to be able to adjust it myself and thank you all for any info. by the way my setup is a 92 tbi 350 in an 88 body

 

to adjust tbi air fuel u have to get an ajustable fuel pressure regulator or modify the stock one to be ajustable